102143583864 has 144 divisors (see below), whose sum is σ = 322685344800. Its totient is φ = 29103992064.

The previous prime is 102143583851. The next prime is 102143583907. The reversal of 102143583864 is 468385341201.

102143583864 is a `hidden beast` number, since 1 + 0 + 2 + 1 + 4 + 3 + 583 + 8 + 64 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1255332 + ... + 1334220.

It is an arithmetic number, because the mean of its divisors is an integer number (2240870450).

Almost surely, 2^102143583864 is an apocalyptic number.

102143583864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102143583864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161342672400).

102143583864 is an abundant number, since it is smaller than the sum of its proper divisors (220541760936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102143583864 is a wasteful number, since it uses less digits than its factorization.

102143583864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79282 (or 79268 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 102143583864 in words is "one hundred two billion, one hundred forty-three million, five hundred eighty-three thousand, eight hundred sixty-four".